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United States Patent | 5,558,199 |
Roether ,   et al. | September 24, 1996 |
An apparatus for manipulating a multilayer stream of tobacco particles with randomly intermixed foreign particles has a vibratory conveyor which advances the stream toward and discharges successive increments of the stream onto the upper reach of an endless belt or chain serving to advance the increments at a speed exceeding the speed of advancement of the stream by the vibratory conveyor. The endless belt or chain discharges a single layer of tobaco particles and foreign particles, and such single layer is caused to move past a segregating unit which detects and expels foreign particles therefrom.
Inventors: | Roether; Friedemann (Aumuhle, DE); Niehues; Heiko (Hamburg, DE); Leckband; Uwe (Hamburg, DE); Drewes; Harry (Hamburg, DE); Christ; Horst-Udo (Hamburg, DE); Dierken; Hans (Amelinghausen, DE) |
Assignee: | Hauni Maschinenbau Aktiengesellschaft (Hamburg, DE) |
Appl. No.: | 278056 |
Filed: | July 20, 1994 |
Jul 31, 1993[DE] | 43 25 838.7 | |
Oct 16, 1993[DE] | 43 35 385.1 |
Current U.S. Class: | 198/461.2; 198/614; 198/771 |
Intern'l Class: | B65G 047/31 |
Field of Search: | 198/461.1,461.2,461.3,610,614,626.1,771 |
2402183 | Jun., 1946 | Rowe et al. | 198/771. |
2819788 | Jan., 1958 | Howard | 198/461. |
2833389 | May., 1958 | Bergmann | 198/771. |
3908814 | Sep., 1975 | Hieronymus | 198/461. |
4244382 | Jan., 1981 | Thiele et al. | 198/771. |
4457840 | Jul., 1984 | Nagl | 198/771. |
4502615 | Mar., 1985 | Stangl | 198/771. |
4936489 | Jun., 1990 | Blain et al. | 198/771. |